Reaper's Legacy by Joanna Wylde

Eight years prior, Sophie gave her love and virginity to Zack Barrett in an embarrassing and not romantic setting. Even though she lost her dignity, she gained a gift, her son Noah. Sadly, Zack is a deadbeat dad who leaves both of them. Rugar is a member of the Reapers Motorcycle Club, and when he finds out the poverty condition Sophie and his nephew are living, he decides to take care of them with the club's protection. Sophie is not happy to have her son grow up, knowing the club lifestyle, but Ruger isn't giving her another choice, because in the end, he wants Sophie to be his.